An adorable series, stories about single parents, especially dads, are always so emotional to me. The art in this story was absolutely beautiful as well, really unique.
Unfortunately I find this ending to be quite rushed, maybe the author was unsure how to proceed or done with the story, or they were asked to bring an end to it by the publisher, but I wouldn't have minded 200 more chapters of sweetness, I feel like there is a disturbing lack of characters growing older in manga/anime. I would've loved to see her grow up for a while longer, and to see the difficult but probably adorable progression of the relationship between Masamune, Koharu, and Katagiri.
It is perfectly nice to know that they ended up together, though I hate that it seems like us readers weren't a part of their life anymore, only showing them to us from a distance or in a picture.
Alright, that's enough venting, I definitely shed a tear or two, hope that whoever reads this feels a bit cathartic too.